Balcony solar kit: price, savings and profitability
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Installing a solar kit on your balcony: how much does it cost and how much does it bring in?
Introduction
With rising electricity prices and growing environmental awareness, more and more individuals are looking to produce their own energy. But if you live in an apartment, is it possible to install a solar kit on your balcony? Good news: yes, and it's even an increasingly accessible solution in Europe.
In this article, we'll look at how much a balcony solar kit costs, how much it can save you, and why it appeals to so many city dwellers.
1. What is a balcony solar kit?
A balcony solar kit, sometimes called a plug & play solar kit , is a small photovoltaic system designed to be easily installed by an individual.
It usually includes 1 to 2 solar panels , a micro-inverter and sometimes an external battery .
It plugs directly into a standard electrical outlet: the energy produced is injected into your home network and reduces your electricity consumption.
✅ Major advantage: no need for complex authorization or professional installer.
2. How much does a balcony solar kit cost?
The price depends on the power of the kit and the presence (or not) of a battery.
300W kit without battery : between €350 and €500
600W kit without battery : between €600 and €800
Kit with storage battery : between €900 and €1,500 , depending on capacity
👉 In comparison, a conventional solar rooftop installation costs several thousand euros.
3. How much can you save with a solar kit?
A 600W solar kit installed on a well-exposed balcony (south, without too much shade) produces around 600 to 700 kWh per year .
If your electricity costs €0.25/kWh (average in Europe in 2025), this represents:
≈ €150 to €175 savings per year.
➡️ In less than 4 to 5 years , the kit pays for itself. Then, it allows you to save money every year.
4. Is it legal to install a solar kit on your balcony?
Yes ✅ In most European countries (France, Germany, Austria, etc.), it is permitted to install a plug & play solar kit without any cumbersome procedures, as long as the power is limited (often 600W to 800W max depending on the regulations).
👉 Example: in France, you can connect a solar kit to a domestic socket without special authorization, but you must declare your installation to Enedis (online procedure, free).
5. Do you need a battery for your balcony solar kit?
Battery-free : energy is injected directly into your devices when they are in operation (fridge, internet box, etc.). Any unused surplus is returned to the network.
With battery : you store electricity to use it in the evening or at night. More expensive to purchase, but more autonomous.
💡 For apartment use, a kit without a battery is often sufficient.
6. Advantages and limitations of a balcony solar kit
Benefits :
Easy to install yourself
Affordable
Eco-friendly and quiet
Helps reduce your electricity bills
Boundaries :
Limited production (ideal for reducing basic consumption, but not for powering an entire home)
Highly dependent on sunshine
Requires a well-exposed balcony or terrace
Conclusion
Installing a solar kit on your balcony is a simple, economical and ecological solution to reduce your electricity bill, even in an apartment.
With an initial investment of between €350 and €1,500 , you can produce part of your energy, make your purchase profitable in a few years and contribute to the energy transition.
🔋 At Heliopack , we believe that solar energy should not be reserved for houses with roofs: thanks to plug & play kits, everyone can become an energy producer, even in the city.